Maths puzzles

to the result
Divide the result by 2
Subtract the original number
Convert the answer into a letter of the alphabet A=1, B=2, C=3, D=4, E =5 etc
Think of a country which starts with the first letter
Think of the name of an animal whose name starts with the second letter of this country
Think of the colour of this animal
There are no grey elephants in Denmark
Or perhaps, you chose a grey, ostrich from the Dominican Republic